<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
    </head>
    <body>
    <?php
        echo $thongbao;
    ?>
    <form name="frmGopy" method="post" action="">
        <label>Họ và tên</label><br />
        <input type="text" name="txtTen" /><br />
        <label>Số điện thoại</label><br />
        <input type="text" name="txtSDT" /><br />
        <label>Email</label><br />
        <input type="text" name="txtEmail" /><br />
        <label>Nội dung góp ý</label><br />
        <textarea name="txtNoiDung"></textarea><br />
        <input type="submit" name="btnSubmit">
    </form>
    </body>
</html>